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DragonFly users List (threaded) for 2010-02
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Re: ltp can't find /proc/cpuinfo

From: Pierre Abbat <phma@xxxxxxxxxxxxx>
Date: Tue, 2 Feb 2010 00:02:57 -0500

On Monday 01 February 2010 12:07:28 Oliver Fromme wrote:
> The "which" command (whether shell-builtin or /usr/bin/which
> doesn't matter) simply looks at the PATH environment variable:
> It opens every directory, one after another, and looks for
> the binary.  It is first found in /usr/pkg/bin.  Note that
> the linuxulator doesn't redirect the directory because
> /compat/linux/usr/pkg/bin doesn't exist.  So the "which"
> command prints /usr/pkg/bin/bash.  The same happens when
> you type "/usr/pkg/bin/bash" because this path doesn't exist
> under /compat/linux, so you'll get the DFly bash.
> However, when you only type "bash" at the Linux bash prompt,
> it simply forks a subshell of itself, so you get the Linux
> bash again.

/bin is before /usr/pkg/bin in $PATH, so that's not why. The reason appears to 
be that which is a BSD program, so it sees only the BSD programs in /bin, and 
bash isn't there. When Linux bash runs bash, however, it looks in /bin and 
finds itself. If I put /usr/pkg/bin before /bin, Linux bash finds BSD bash:

bash-3.00# PATH=/usr/pkg/bin:$PATH
bash-3.00# bash

When a barnacle settles down, its brain disintegrates.
Já não percebe nada, já não percebe nada.

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